Sentence examples for index of mining from inspiring English sources

An elastic three-dimensional numerical model was established to calculate an index of mining induced stress, for both roadway development and longwall retreat.

We constructed an index of mining activity influence as follows: where T is the tonnage of nickel ore extracted between 1940 and 1980; W is a coefficient depending on the orientation of the mining massif with respect to the tribe and the prevailing wind; and D is the distance between the center of the tribe and the nearest massif.

GRSM defines suggested roof support densities by linking a rock-mass classification with an index of mining-induced stress, using a large empirical database of Bowen Basin mining experience.

It is designed to track the spot price of gold, not an index of gold-mining stocks.

The overall economic technical index of coal mines with 10 million tons capacity has reached the international leading level, and a number of world records have been broken in terms of the output of a coal face, working efficiency, and fully mechanized roadway advance rate.

Indeed seven of the top ten fallers in the leading index are mining groups.

With copper down almost 2% on the Chinese news, seven of the top ten fallers in the leading index were mining groups.

But the Chicago Board Options Exchange index of eight gold mining companies is up 42.4percentt for the year, and Newmont Mining, the largest gold mining company and a leader of the anti-hedgers, is up 57.4percentt.

The country's four biggest banks, whose overseas investments have taken a beating, account for 25percentt of the index; big mining companies, which earn most of their income abroad, account for another 10percentt.

The XAU, a widely followed index of gold and silver mining stocks, ended September with a loss of 18.4 percent for 2011, a far worse performance than metallic gold and even worse than the 10 percent loss for the Standard & Poor's 500-stock index.

Randgold, the gold producer, was the second-biggest faller in the FTSE 100 index amid a general sell-off of mining companies.